Hellenic Polytheistic Reconstructionism (also Hellenic Reconstructionism) refers to various reconstructionist movements that revive ancient Greek religious practices, emerging since the 1990s. Since 1997 the movement in Greece has been institutionalized under the Supreme Council of Ethnikoi Hellenes. Polytheistic reconstructionism is not a religion itself, but is the methodology for re-establishing a historical polytheistic (or pre-Christian) religion in the modern world.
Hellenismos, or Hellenism, is the Hellenic religion, a traditional polytheistic religion and way of life, revolving around the Greek Gods, primarily focused on the Twelve Olympians, and embracing ancient Hellenic values and virtues.
Read more about Hellenic Polytheistic Reconstructionism: Groups and Self-designations, Hellenic Polytheism, Reconstructionism, Political Controversy and Discrimination, Hellenic Polytheism and Neopaganism